Drain-pipe.



awe/M01 G. WKZSZOTZEQ.

Patented Mar. 14, 1911.

. pipe hereinafter described and claimed.

UNITED s'ra'rps PATENT OFFICE.

CHARLES W. OSBORNE, OF LUBBOCK, TEXAS.

DRAIN-PIPE. 986,940. Specification of l-etterslatent Patented Mar. 14, 1911.

- Application filed November 12, 1910. Serial No. 592,051.

To all whom it may concern: cliiie them outwardly from the outside of the Beit known that I, CHARLES W. OSBORNE, blank which is to correspond with the outer a citizen of the United States, residing at side of the pipe section made from the blank.

- These tongues project toward that end of the Lubbock, in the county of Lubbock .and

State of Texas, have invented certain new pipe which is uppermost when the pipe is and useful Improvements in Drain-Pipes, of laid, either in an irrigating or draining which the following is a specification, referditch, or in a well so that the tongues while overhanging the openings formed thereby in the sides of the pipe, prevent the entrance 0 3 particles into the pipe while permitting sheet metal and especially adapted for use i water to freely enter throu h the said openfor sub or underground irrigation. to irrii ings and to flow through the pipe.

gate land. and also for use as a casing for a In practice one end ence being had to the accompanyingv drawb .\lv invention is an improved pipe made of of the pipe section is well, and for underground drainage, the in slightly smaller than the other so that the vention consisting in the construction of the smaller end of each pipe section may be fitted into the larger en of the next adjacent pipe section, and thereby enable the pipe see- In the accompanying drawings-J.

' be readily coupled together when is partly an elevation and partly a sectional view of a'section of pipe constructed in acthey are laid or placed in a ditch or in a well cordance with my invention. Fig. is a for use. v

plan-of the blank from which the pipe sec- The ton es which overhang the openings tion is formed. Fig. 3 is a transverse secin the si es of the pipe sections project toward the larger upper ends of the pipe sections. The openings in the pipe forme by the slits therein, and the outwardly prodisposed between an tional view of the pipe. Figs. 4 and 5 are detail elevations of-modified forms of my improved pipe. ig. 6 is a detail longitudiof pipe shown the out-turned Sp nal sectional view'of the form in Fig. l, and showing one of so that while the side portions ofthe pipe tongues.

My improved pipe is made in-sections of are perforated, the bottom and top thereof suitable length and may be made of any suitare iinperforate. able diameter. Each section of my im- In the modified form of my invention proved pipe is made from a single blank of shown in Fig. 4, the slits 6 in the sides of the sheet metal, preferably galvanized sheet pipe are longitudinal of the pipe and pariron, w ich blank is of oblong rectangular allel with oneanother, and the central porform, and is crimped at its longitudinal side ion of each Slit 1 S widened by outturning edges to provide flanges 2 wine when t e the material forming the side edges of the blank is bent'into cylindrical form, to form slit. the pipe sections, are interlocked as at 3, so In the form of my invention shown in Fig.

with cross slitsv8, and

5, the

between the cross the material in slits is outturned.

pipe is provided as to secure the angles and form a seam the edges of the blank together,

in the lower side 0 i of the pipe ipe. Said interlocked flanges section may be riveted or soldered, or other- My improved pipe is especially adapted wise suitably secured. The blank sheet, betor use for irrigating purposes, for well easfore the pipe section is made therefrom, is provided at points between and spaced from its side edges an ings, and also for under ground draining, may be very readily and cheaply manufactured, is extremely strong and durable, an while admitting water readily thereto, owing to the provision of the slightly outturne tongues formed by and between the slits in its longitudinal center, with series of longitudinally directed V- shaped slits 4, which form triangular tongues 5, which are struck up so as to ind is d top of the p pe 

